<!DOCTYPE  HTML>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>数组</title>
    <script type="text/javascript">
    //创建数组
    var arr = ['*', '##', "***", "&&", "****", "##*"];
    arr[7] = "**";
    //显示数组长度
    alert(arr.length);

    //将数组内容输出，完成达到的效果。
    document.write(arr[0]+"<br/>");
    document.write(arr[7]+"<br/>");
    document.write(arr[2]+"<br/>");
    document.write(arr[4]+"<br/>");
    </script>
</head>

<body>
</body>

</html>